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Stock-Based Compensation Expense - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Employee Stock Option      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Options granted in period (in shares) 0 0  
Compensation cost not yet recognized $ 5.5    
Compensation cost not yet recognized, period of recognition 1 year 4 months 24 days    
Performance-based restricted stock units      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Compensation cost not yet recognized $ 28.5    
Compensation cost not yet recognized, period of recognition 1 year 3 months 18 days    
Performance-based restricted stock units | Maximum      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Stock units granted in period (in shares) 290,120 364,810  
Cash-settled performance-based awards      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Compensation cost not yet recognized $ 4.4    
Compensation cost not yet recognized, period of recognition 1 year 9 months 18 days    
Fair value of awards $ 5.7   $ 5.1
Cash-settled performance-based awards | CEO      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Target cash incentive 1.7 $ 1.6  
Cash-settled performance-based awards | Maximum      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Target cash incentive $ 4.7 $ 4.4  
Multiplying factor 250.00% 250.00%  
Restricted stock units      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Restricted stock units granted (in shares) 135,778 158,719  
Compensation cost not yet recognized $ 27.7    
Compensation cost not yet recognized, period of recognition 2 years 7 months 6 days    
Restricted stock units | Non-employee members      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Award vesting period 1 year    
Restricted stock units | Minimum | Employee      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Award vesting period 3 years    
Restricted stock units | Maximum | Employee      
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]      
Award vesting period 4 years